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Ground Control Suspension

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Old 08-10-2018, 11:38 AM
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Ground Control Suspension

I recently watched the video by LSXMatt where he bought the rear portion of the ground control weight jack set up from another member who only needed the fronts. I spoke to ground control and they absolutely refuse to sell only the front or rears. I already have a coilover set up on the front and want to get the rear weight jacks. Would anyone have any interest in buying the fronts if I bought the kit?
Thanks,
Chris
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Old 08-11-2018, 02:06 PM
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Re: Ground Control Suspension

If you don't have to absolutely have Ground Control rear weight jacks, you could use Allstar Performance spring spacer for the rear:

https://pitstopusa.com/i-5066715-all...uster-nut.html

and just get the right spring for them:

https://pitstopusa.com/c-131813-chas...cle-track.html
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Old 08-11-2018, 07:13 PM
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Re: Ground Control Suspension

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Old 08-11-2018, 09:10 PM
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Re: Ground Control Suspension

Originally Posted by t/aws61985 View Post
Those are for the front. UMI does make them for the rear but they are much more expensive. Why? I dunno.
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Old 08-12-2018, 11:01 AM
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Re: Ground Control Suspension

Originally Posted by Tibo View Post
Those are for the front. UMI does make them for the rear but they are much more expensive. Why? I dunno.
My bad.
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Old 08-13-2018, 01:38 PM
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Re: Ground Control Suspension

Thanks for the responses, guys! I may end up going with ground control and posting the fronts for sale. Not sure yet.
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Old 08-13-2018, 02:56 PM
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Re: Ground Control Suspension

Originally Posted by Tibo View Post
Those are for the front. UMI does make them for the rear but they are much more expensive. Why? I dunno.

Do you have a part number? I don't see a kit for the rear. Unless your post was a typo.
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Old 08-13-2018, 03:01 PM
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Re: Ground Control Suspension

All I'm seeing for the rear is coil overs, which are definitely more expensive.
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Old 08-13-2018, 03:24 PM
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Re: Ground Control Suspension

UMI has not released there rear weight jacks yet
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Old 08-13-2018, 03:55 PM
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Re: Ground Control Suspension

Originally Posted by kaos420 View Post
UMI has not released there rear weight jacks yet

Are they designing a set that you know of? If so that's exciting.
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Old 08-13-2018, 04:27 PM
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Re: Ground Control Suspension

Originally Posted by ShiftyCapone View Post
Do you have a part number? I don't see a kit for the rear. Unless your post was a typo.
I was wrong.
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Old 08-13-2018, 06:27 PM
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Re: Ground Control Suspension

Yes umi will have rear weight jacks out for sale anytime now and the adjuster will be on the top kind of like there front kit.
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Old 08-22-2018, 09:03 AM
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Re: Ground Control Suspension

I saw the rear kit at the UMI Open House 2 weeks ago. It is close to becoming available with it currently being tested on their shop 4th gen at the track and the shop 3rd gen for fitment and less strenuous driving. No idea on what their pricing will be when they hit the market but probably similar to the front kit since the design is very similar. We might have a pre-release set on our GTA for testing at LSFest depending on timing and availability between now and then.
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Old 08-22-2018, 10:24 AM
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Re: Ground Control Suspension

Originally Posted by Beater79TA View Post
I saw the rear kit at the UMI Open House 2 weeks ago. It is close to becoming available with it currently being tested on their shop 4th gen at the track and the shop 3rd gen for fitment and less strenuous driving. No idea on what their pricing will be when they hit the market but probably similar to the front kit since the design is very similar. We might have a pre-release set on our GTA for testing at LSFest depending on timing and availability between now and then.
To be clear, is the design like the front set of weight jacks UMI makes or the rear set that ground control makes?
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Old 08-22-2018, 10:32 AM
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Re: Ground Control Suspension

Originally Posted by Tibo View Post
To be clear, is the design like the front set of weight jacks UMI makes or the rear set that ground control makes?
Similar to the front set UMI makes with the adjust at the top using a threaded rod. Completely different from the rear design used by Ground Control which operates more like a coilover shock spring.
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Old 08-22-2018, 03:25 PM
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Re: Ground Control Suspension

Generally speaking, I'm a big fan of UMI, and have most of their 82-92 catalog under my car. That being said, I've had the Ground Control weight jacks for a few years now and have been really impressed. Easy adjustment, nice ride, and quality looking ano and powdercoat.

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Old 08-22-2018, 03:31 PM
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Re: Ground Control Suspension

I can't really fault the Ground Control units and how well they survived 6 years of the beating we laid on them. But at that point they had to be replaced. We had beaten them to a pulp and the fronts had developed some scary bends to the upper spring plates. Most people will likely never punish their suspension the way we do though with thousands of track and autocross laps every year. I wouldn't hesitate to use Ground Control again on a cruiser or something that only saw the track a couple times a year though. To go back to them now on the track warriors would require a maintenance plan to replace them every few years with a new set with is difficult to do since GC won't sell fronts and rears separately.
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